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Weather Averages for Norristown, PA

7-day Forecast / 10-day Forecast
Monday
High: 35°F
Low: 20°F
Sunny
 
Tuesday
High: 39°F
Low: 30°F
Partly Cloudy
 
Wednesday
High: 48°F
Low: 34°F
Sunny
 
Thursday
High: 43°F
Low: 28°F
Partly Cloudy
 
Friday
High: 44°F
Low: 33°F
Sunny
 

Latitude: 40°7'N, Longitude: 75°21'W, Elevation: 70.0 ft, Distance: 1.73 mi                 Norristown, PA Averages »

  Unit Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Average temperature
over 30 years
°F 53 29 32 41 51 62 71 75 74 66 55 45 35
Average high temperature
over 30 years
°F 63 37 41 51 62 73 82 86 84 77 66 55 43
Average low temperature
over 30 years
°F 43 21 23 32 41 51 60 65 64 56 44 36 26
Average precipitation
over 30 years
in 44.4 3.3 3.0 3.5 3.7 4.2 3.6 4.5 4.1 4.1 3.0 3.8 3.6
Heating degree days
over 30 years
days 5114 1091 913 722 390 121 8 - - 55 305 579 930
Cooling degree days
over 30 years
days 1022 - - - - 46 206 338 301 115 16 - -




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